Greenwood 4000SB Slotvent
Greenwood 4000SB slot-vent for UPVC window frames. Features Bottom operated Integral fly screen Available in white or brown finish Measurements Length: 400mm Depth: 23mm Height: 22mm Slot height: 12.5mmVisit the DG Supplyline Ltd website for more information on Greenwood 4000SB Slotvent